Dad and mom turned the Farm/Ranch over to me 3 years ago and moved to house on the Columbia river. Their 34′ boat is an 1/8 mile from their home so my wife and four year old son stay on it when visiting. The first day we stayed dad talked about how pretty moms b**** were, then she showed them to me in private. They are 38 GG so I was enjoying her b**** not thinking about dad and my wife up on deck. I thought I heard my wife, it sounded like when I push my c*** inside her. I said to mom “I think Sandy is f****** Dad.” she responded ” We better get even,” then she pulled my c*** out to s*** a minute before she put her huge b00bs in my face. Moms P()ssy is softer inside than Sandys and tighter, we were f()cking slow while she got used to my C0ck. I heard Sandy Cuming ad blew my load inside mom while she came on my C***. Me went up on deck to find Sandy and Dad passed out and naked so we f()cked again in mom and dads bed. We stayed on board till the next weekend openly having s** with each others wife.